EP3971656A1 - Mit einem viskosen element ausgestatteter stossdämpfungsschutz für einen resonatormechanismus mit flexibler drehführung - Google Patents

Mit einem viskosen element ausgestatteter stossdämpfungsschutz für einen resonatormechanismus mit flexibler drehführung Download PDF

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Publication number
EP3971656A1
EP3971656A1 EP20214330.1A EP20214330A EP3971656A1 EP 3971656 A1 EP3971656 A1 EP 3971656A1 EP 20214330 A EP20214330 A EP 20214330A EP 3971656 A1 EP3971656 A1 EP 3971656A1
Authority
EP
European Patent Office
Prior art keywords
flexible
resonator mechanism
blades
viscous substance
transverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20214330.1A
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English (en)
French (fr)
Inventor
Jérôme Favre
Dominique Lechot
Baptiste Hinaux
Gianni Di Domenico
Pascal Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to US17/526,700 priority Critical patent/US20220187769A1/en
Priority to JP2021196660A priority patent/JP7254153B2/ja
Priority to CN202111533429.3A priority patent/CN114637178A/zh
Publication of EP3971656A1 publication Critical patent/EP3971656A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings

Definitions

  • the invention relates to a clockwork resonator mechanism, comprising a structure and an anchoring block from which is suspended at least one inertial element, a virtual pivot comprising a plurality of substantially longitudinal elastic blades, each fixed, at a first end to said block anchor, and at a second end to said inertial element.
  • the invention also relates to a clock movement comprising at least one such resonator mechanism.
  • the invention relates to the field of clockwork resonators, and more particularly those which comprise elastic blades acting as return means for the operation of the oscillator.
  • the torsion rigidity of the suspension is a delicate point for most clock oscillators comprising at least one spiral spring or elastic blades constituting a flexible guide, and in particular for resonators with crossed blades.
  • the shock resistance also depends on this torsional rigidity; in fact, during shocks, the stress undergone by the blades quickly reaches very high values, which correspondingly reduces the travel that the part can travel before yielding.
  • Shock absorbers for timepieces come in many variants. However, their main purpose is to protect the fragile pivots of the axis of the resonator, and not the elastic elements, such as conventionally the spiral spring.
  • New mechanism architectures make it possible to maximize the quality factor of a resonator, by the use of a flexible guide with the use of a lever escapement with a very small angle of lift, according to demand CH15442016 on behalf of ETA Manufacture Horlogère Suisse and its derivatives, the lessons of which can be directly used in this invention, and whose resonator can be further improved as regards its sensitivity to shocks, in certain particular directions. It is therefore a question of protecting the blades from breaking in the event of impact.
  • Requirement CH5182018 or request EP18168765 on behalf of ETA Manufacture Horlogère Suisse describes a resonator clockwork mechanism, comprising a structure carrying, by a flexible suspension, an anchoring block from which is suspended an inertial element oscillating according to a first degree of freedom in rotation RZ, under the action of return forces exerted by a virtual pivot comprising first elastic blades each fixed to said inertial element and to said anchoring block, the flexible suspension being arranged to allow a certain mobility of the anchoring block according to all the other degrees of freedom that the first degree of freedom in rotation RZ according to which only the inertial element is mobile to avoid any disturbance of its oscillation, and the rigidity of the suspension according to the first degree of freedom in rotation RZ is very greatly greater than the rigidity of the pivot virtual according to this same first degree of freedom in rotation RZ.
  • Requirement CH715526 or request EP3561607 on behalf of ETA Manufacture Horlogère Suisse describes a resonator clockwork mechanism, comprising a structure and an anchoring block from which is suspended at least one inertial element arranged to oscillate according to a first degree of freedom in rotation RZ around an axis of pivot extending in a first direction Z, said inertial element being subjected to restoring forces exerted by a virtual pivot comprising a plurality of substantially longitudinal elastic blades, each fixed, at a first end to said anchoring block, and at a second end to said inertial element, each said elastic blade being deformable essentially in an XY plane perpendicular to said first direction Z.
  • the invention proposes to improve the resonator mechanism of the demand CH715526 or request EP3561607 on behalf of ETA Manufacture Horlogère Congress to protect the flexible suspension from the disadvantages mentioned above.
  • the invention relates to a clockwork resonator mechanism, comprising a structure and an anchoring block from which is suspended at least one inertial element arranged to oscillate according to a first degree of freedom in rotation RZ around a pivot axis extending along a first direction Z, said inertial element being subjected to restoring forces exerted by a virtual pivot comprising a plurality of substantially longitudinal elastic blades, each fixed, at a first end to said anchor block, and at a second end to said inertial element, each said elastic blade being deformable essentially in an XY plane perpendicular to said first direction Z, said anchor block being suspended from said structure by a flexible suspension arranged to allow the mobility of said anchor block .
  • the invention is remarkable in that the resonator mechanism comprises a viscous substance arranged at least partly around the flexible suspension, the viscous substance being configured to dissipate at least partly the energy due to an impact.
  • the flexible suspension is better protected in the event of a major shock, in particular to prevent the flexible suspension, in particular one of the strips or rods, from breaking or cracking prematurely.
  • a major shock in particular to prevent the flexible suspension, in particular one of the strips or rods, from breaking or cracking prematurely.
  • the invention improves the protection of the resonator mechanism against the risk of breakage.
  • said flexible suspension comprises, between said anchoring block and a first intermediate mass, which is fixed to said structure directly or by means of a plate flexible in said first direction Z, a transverse translation table with flexible guidance and comprising at least two transverse flexible blades or rods, preferably rectilinear, and extending in said second direction X and in symmetry around a transverse axis crossing said pivot axis.
  • the viscous substance is arranged between the transverse blades or flexible rods of the transverse translation table.
  • the viscous substance is arranged at least in part around the first intermediate mass.
  • the viscous substance is arranged at least in part around said anchor block
  • the viscous substance is arranged at least in part around the second intermediate mass.
  • the viscous substance comprises glue sensitive to ultraviolet radiation.
  • the viscous substance comprises rubber.
  • the viscous substance comprises silicone.
  • said flexible suspension comprises, between said anchor block and a second intermediate mass, a longitudinal translation table with flexible guidance and comprising at least two blades or longitudinal flexible rods, preferably rectilinear , and extending in said third direction Y and in symmetry around a longitudinal axis crossing said pivot axis, and comprises said transverse translation table between said second intermediate mass and said first intermediate mass.
  • the viscous substance is arranged at least in part between the blades or longitudinal flexible rods of the longitudinal translation table.
  • the viscous substance is arranged at least in part around the second intermediate mass.
  • the flexible suspension is in one piece.
  • the flexible suspension is made of silicon.
  • the anchor block is movable according to five flexible degrees of freedom of the suspension which are a first degree of freedom in translation according to said first direction Z, a second degree of freedom in translation according to a second direction X orthogonal to said first direction Z, a third degree of freedom in translation along a third direction Y orthogonal to said second direction X and to said first direction Z, a second degree of freedom in rotation RX around an axis s extending along said second direction X, and a third degree of freedom in rotation RY about an axis extending along said third direction YX
  • the invention also relates to a clockwork movement comprising at least one resonator mechanism according to the invention, and/or at least one clockwork oscillator mechanism comprising a clockwork resonator mechanism and an escapement mechanism, which are arranged to cooperate with each other
  • this clockwork resonator mechanism 100 comprises a structure 1 and an anchoring block 30, from which is suspended at least one inertial element 2 arranged to oscillate according to a first degree of freedom in rotation RZ about a pivot axis D s extending in a first direction Z.
  • the inertial element 2 comprises a balance 20.
  • the balance has the shape of a bone, the balance comprising a straight segment provided with a bulb at each end.
  • Each bulb may include small flyweights 29 to adjust the inertia of the inertial element 2.
  • This inertial element 2 is subjected to return forces exerted by a virtual pivot 200 comprising a plurality of substantially longitudinal elastic blades 3, each fixed, at a first end to the anchor block 30, and at a second end to the inertial element 2.
  • Each elastic blade 3 is deformable essentially in an XY plane perpendicular to the first direction Z.
  • the principle is to use the torsional flexibility of a translation table to better manage the torsional stiffness of the suspension.
  • the blades of the XY tables are oriented so that the direction of greatest flexibility in torsion aims at the axis of rotation of the resonator. Their flexibility in torsion is managed by bringing the blades closer to each other.
  • the flexible suspension 300 comprises, between the anchor block 30 and a first intermediate mass 303, which is fixed to the structure 1 directly or via a flexible plate 301 in the first direction Z, a table of transverse translation 32 with flexible guidance, and which comprises transverse blades 320 or transverse flexible rods, rectilinear and extending in the second direction X.
  • the flexible suspension 300 further comprises, between the anchor block 30 and a second intermediate mass 305, a longitudinal translation table 31 with flexible guidance, and which comprises longitudinal blades 310 or longitudinal flexible rods, rectilinear and extending along the third direction Y.
  • the transverse translation table 32 with flexible guidance comprises transverse blades 320 or transverse flexible rods, rectilinear and extending along the second direction X.
  • the longitudinal axis D1 crosses the transverse axis D2, and in particular the longitudinal axis D1, the transverse axis D2, and the pivot axis D are concurrent.
  • the longitudinal translation table 31 and the transverse translation table 32 each comprise at least two blades or flexible rods, each blade or rod being characterized by its thickness according to the second direction X when the blade or rod extends in the third direction Y or vice versa, by its height in the first direction Z, and by its length in the direction in which the blade or rod extends, the length being for example at least five times greater than the height, the height being at least as great as the thickness, and more particularly at least five times greater than this thickness, and more particularly still at least seven times greater than this thickness.
  • the transverse translation table 32 comprises at least two blades or transverse flexible rods, parallel to each other and of the same length.
  • the figures 1 to 4 illustrate a non-limiting variant with four parallel transverse blades, and, more particularly, each consisting of two half-blades arranged on two superimposed levels, and extending in the extension of one another in the first direction Z. These half-blades may be either entirely free relative to each other, or else secured by bonding or the like, or by growth of SiO 2 in the case of an execution in silicon, or the like.
  • the longitudinal translation table 31, when it exists since it is optional, can obey the same principle of construction. The number, arrangement and section of these blades or rods may vary without departing from the present invention.
  • the principle is to use the torsional flexibility of a translation table to better manage the torsional stiffness of the suspension.
  • the blades of the XY tables are oriented so that the direction of greatest flexibility in torsion aims at the axis of rotation of the resonator. Their flexibility in torsion is managed by bringing the blades closer to each other.
  • the flexible suspension 300 comprises, between the anchor block 30 and a first intermediate mass 303, which is fixed to the structure 1 directly or via a flexible plate 301 in the first direction Z, a table of transverse translation 32 with flexible guidance, and which comprises transverse blades 320 or transverse flexible rods, rectilinear and extending in the second direction X.
  • the flexible suspension 300 further comprises, between the anchor block 30 and a second intermediate mass 305, a longitudinal translation table 31 to flexible guide, and which comprises longitudinal blades 310 or longitudinal flexible rods, rectilinear and extending along the third direction Y.
  • the transverse translation table 32 with flexible comprises transverse blades 320 or transverse flexible rods, rectilinear and extending in the second direction X.
  • the longitudinal axis D1 crosses the transverse axis D2, and in particular the longitudinal axis D1, the transverse axis D2, and the pivot axis D are concurrent.
  • the longitudinal translation table 31 and the transverse translation table 32 each comprise at least two blades or flexible rods, each blade or rod being characterized by its thickness in the second direction X when the blade or rod extends in the third direction Y or vice versa, by its height in the first direction Z, and by its length in the direction in which the blade or rod extends, the length being for example at least five times greater than the height, the height being at least as great as the thickness, and more particularly at least five times greater than this thickness, and more particularly still at least seven times greater than this thickness.
  • the transverse translation table 32 comprises at least two blades or transverse flexible rods, parallel to each other and of the same length.
  • the figures 1 to 4 illustrate a non-limiting variant with four parallel transverse blades, and, more particularly, each consisting of two half-blades arranged on two superimposed levels, and extending in the extension of one another in the first direction Z. These half-blades may be either entirely free relative to each other, or else secured by bonding or the like, or by growth of SiO 2 in the case of an execution in silicon, or the like.
  • the longitudinal translation table 31, when it exists since it is optional, can obey the same principle of construction. The number, arrangement and section of these blades or rods may vary without departing from the present invention. More particularly, the transverse blades or rods of the transverse translation table 32 have a first plane of symmetry, which is parallel to the transverse axis D2, and which passes through the pivot axis D.
  • the transverse blades or rods of the transverse translation table 32 have a second plane of symmetry, which is parallel to the transverse axis D2, and orthogonal to the pivot axis D.
  • the blades or transverse rods of the transverse translation table 32 have a third plane of symmetry, which is perpendicular to the transverse axis D2, and parallel to the pivot axis D.
  • the blades or transverse rods of the transverse translation table 32 extend over at least two levels parallel to each other, each level being perpendicular to the pivot axis D.
  • the arrangement of the transverse blades or rods of the transverse translation table 32 is identical on each of the levels.
  • transverse blades or rectilinear flexible rods 320, 1320 are flat blades whose height is at least five times greater than their thickness.
  • the transverse blades or rectilinear flexible rods 320 are rods of square or circular section whose height is equal to the thickness.
  • the longitudinal translation table 31 comprises at least two blades or longitudinal flexible rods, parallel to each other and of the same length.
  • the blades or longitudinal rods of the longitudinal translation table 31 have a first plane of symmetry, which is parallel to the longitudinal axis D1, and which passes through the pivot axis D.
  • the blades or longitudinal rods of the longitudinal translation table 31 have a second plane of symmetry, which is parallel to the longitudinal axis D1, and orthogonal to the pivot axis D.
  • the blades or longitudinal rods of the longitudinal translation table 31 have a third plane of symmetry, which is perpendicular to the longitudinal axis D1, and parallel to the pivot axis D.
  • the blades or transverse rods of the longitudinal translation table 31 extend over at least two levels parallel to each other, each level being perpendicular to the pivot axis D.
  • the arrangement of the blades or transverse rods of the longitudinal translation table 31 is identical on each of the levels.
  • the longitudinal blades or rectilinear flexible rods 310 are flat blades whose height is at least five times greater than their thickness.
  • the longitudinal strips or rectilinear flexible rods 310 are rods of square or circular cross-section, the height of which is equal to the thickness.
  • the flexible suspension 300 comprises a viscous substance 10 which can be placed on one or more parts of the flexible suspension 300.
  • the viscous substance 10 is preferably arranged between the transverse blades or flexible rods 320 of the transverse translation table 32.
  • the viscous substance 10 makes it possible to absorb the energy due to shocks, in particular in order to prevent the blades or cross rods 320 do not break or crack.
  • the viscous substance 10 can also serve as protection for the other parts of the flexible suspension.
  • the viscous substance 10 is also arranged between the blades or flexible rods 310 of the longitudinal translation table 31.
  • the viscous substance 10 at least partially fills the space between the blades or flexible rods.
  • the viscous substance 10 forms a continuum of material connecting the blades or flexible rods together in the space which separates them laterally.
  • the viscous substance 10 is arranged at least partly around the first intermediate mass 303.
  • the viscous substance is preferably also arranged at least partly around the second intermediate mass 305.
  • the viscous substance 10 is by example arranged at least in part around said anchor block 30.
  • the viscous substance is arranged between the blades or flexible transverse rods 320 of the transverse translation table 32, between the blades or flexible rods 310 of the longitudinal translation table 31, at least partly around the first intermediate mass 303 at least partly around the second intermediate mass 305, and at least partly around said anchor block 30.
  • the viscous substance 10 comprises silicone, preferably substantially entirely.
  • the silicone absorbs the energy of the impact with good efficiency.
  • the viscous substance 10 comprises glue sensitive to ultraviolet radiation. Initially viscous, such an adhesive hardens under the effect of ultraviolet radiation. For its use according to the invention, the adhesive is kept in viscous form, without applying ultraviolet radiation.
  • the third embodiment of the viscous substance 10 comprises rubber.
  • viscous substance is meant a material strong enough to avoid flowing, but which is easily deformed. Thus, the viscous substance adheres to the walls of the flexible suspension 300, and remains in place. When the flexible suspension 300 is in motion, the viscous substance deforms and offers a resistance which dissipates the energy, in particular when the movement is significant, in particular in the event of an impact.
  • the resonator mechanism 100 comprises axial stop means comprising at least a first axial stop 7 and a second axial stop 8 to limit the travel in translation of the inertial element 2 at least along the first direction Z, the means axial abutment being arranged to cooperate in abutment support with the inertial element 2 for the protection of the longitudinal blades 3 at least against axial shocks in the first direction Z, and the second plane of symmetry is substantially at equal distance from the first axial stop 7 and the second axial stop 8.
  • the resonator mechanism 100 comprises a plate 301, comprising at least one flexible blade 302 extending in a plane perpendicular to the pivot axis D, and fixed to the structure 1 and to the first intermediate mass 303, and which is arranged to allow mobility of the first intermediate mass 303 in the first direction Z.
  • the plate 301 comprises at least two flexible blades 302 coplanar.
  • Such a plate 301 is however optional if the height of the blades of the XY translation tables is low compared to the height of the flexible blades 3, in particular less than a third of the height of the flexible blades 3.
  • the flexible suspension 300 is in one piece, preferably in silicon.
  • the resonator mechanism 100 comprises a one-piece assembly, which includes at least the anchor block 30, a base of the at least one inertial element 2, the flexible pivot 200, the flexible suspension 300, the first mass intermediate 303, and the transverse translation table 32, and comprises at least one breakable element 319 arranged to secure the components of the one-piece assembly during their assembly on the structure 1, and the breakage of which frees all the mobile components of the one-piece assembly.
  • the one-piece assembly still includes at least the second intermediate mass 305 and the longitudinal translation table 31.
  • the resonator mechanism 100 can thus advantageously comprise at least two superimposed elementary one-piece assemblies, each of which includes a level of the anchoring block 30, and/or of a base of the at least one inertial element 2, and/or of the flexible pivot 200, and/or of the flexible suspension 300, and/or of the first intermediate mass 303, and/or of the transverse translation table 32, and/or of a breakable element 319; each elementary one-piece assembly can be assembled with at least one other elementary one-piece assembly by bonding or similar, by mechanical assembly, or by growth of SiO 2 in the case of an execution in silicon, or similar.
  • such an elementary one-piece assembly further comprises at least one level of the second intermediate mass 305 and/or of the longitudinal translation table 31.
  • the invention also relates to a clockwork oscillator mechanism comprising such a clockwork resonator mechanism 100, and an escapement mechanism, arranged to cooperate with each other.
  • the invention also relates to a timepiece movement comprising at least one such oscillator mechanism and/or at least one resonator mechanism 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Vibration Prevention Devices (AREA)
EP20214330.1A 2020-09-18 2020-12-15 Mit einem viskosen element ausgestatteter stossdämpfungsschutz für einen resonatormechanismus mit flexibler drehführung Pending EP3971656A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/526,700 US20220187769A1 (en) 2020-09-18 2021-11-15 Shock-resistant protection provided with a viscous substance for a resonator mechanism with rotary flexible guide
JP2021196660A JP7254153B2 (ja) 2020-09-18 2021-12-03 回転式可撓性ガイドを有する共振器機構のための粘質物を備えた耐衝撃保護
CN202111533429.3A CN114637178A (zh) 2020-09-18 2021-12-15 用于带有旋转柔性引导件的谐振器机构的设有粘性物质的抗震保护

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20196863.3A EP3971655A1 (de) 2020-09-18 2020-09-18 Stossdämpfungsschutz mit anschlag eines resonatormechanismus mit flexibler drehführung

Publications (1)

Publication Number Publication Date
EP3971656A1 true EP3971656A1 (de) 2022-03-23

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP20196863.3A Pending EP3971655A1 (de) 2020-09-18 2020-09-18 Stossdämpfungsschutz mit anschlag eines resonatormechanismus mit flexibler drehführung
EP20214330.1A Pending EP3971656A1 (de) 2020-09-18 2020-12-15 Mit einem viskosen element ausgestatteter stossdämpfungsschutz für einen resonatormechanismus mit flexibler drehführung

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Application Number Title Priority Date Filing Date
EP20196863.3A Pending EP3971655A1 (de) 2020-09-18 2020-09-18 Stossdämpfungsschutz mit anschlag eines resonatormechanismus mit flexibler drehführung

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Country Link
US (2) US20220091562A1 (de)
EP (2) EP3971655A1 (de)
JP (2) JP7397835B2 (de)
KR (1) KR20220037988A (de)
CN (2) CN114200811B (de)

Citations (3)

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CH717182B1 (fr) * 2019-01-23 2023-11-15 Patek Philippe Sa Geneve Mouvement de pièce d'horlogerie comprenant un oscillateur mécanique et un dispositif d'arrêt dudit oscillateur.

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EP3561607A1 (de) 2018-04-23 2019-10-30 ETA SA Manufacture Horlogère Suisse Stossdämpfungsschutz eines resonatormechanismus mit flexibler drehführung
CH715526A2 (fr) 2018-11-08 2020-05-15 Eta Sa Mft Horlogere Suisse Protection antichoc d'un mécanisme résonateur à guidage flexible rotatif.
EP3719587A1 (de) * 2019-04-04 2020-10-07 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Stossdämpfungsvorrichtung und mechanischer oszillator eines uhrwerks mit flexibler führung, der über eine solche stossdämpfungsvorrichtung verfügt

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JP2022094937A (ja) 2022-06-27
US20220187769A1 (en) 2022-06-16
US20220091562A1 (en) 2022-03-24
CN114200811A (zh) 2022-03-18
CN114637178A (zh) 2022-06-17
CN114200811B (zh) 2024-02-02
JP7254153B2 (ja) 2023-04-07
JP2022051539A (ja) 2022-03-31
KR20220037988A (ko) 2022-03-25
JP7397835B2 (ja) 2023-12-13
EP3971655A1 (de) 2022-03-23

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